Looking for actual user reviews of laptops & video systems

My department is currently looking at buying a computer & video system for our new ambulance. This will be the first vehicle-mounted computer for us, but there are many other agencies in our county that use the Panasonic Toughbook. I know it has a great reputation, but we are looking at all possibilities. Do any of you have any experience with any of the following computers? Any advice for "regular" hard drive vs. solid state? Thanks in advance for the help.

Panasonic PDRC

Dell Latitude XFR D630

Motorola ML910 or 810 Mobile Workstation

Toshiba Tecra R10 or M10

Motion Computing LE1700

Anything from Winmate

Anything from DRS Armor

We're also looking at the Panasonic Toughbook Arbitrator as the video system. Anybody used it in a fire/EMS setting?